# import sys
#
# a = "hello world"
# b = [11, 22, 33]
#
# ret = sys.getrefcount(a)
# ret2 = sys.getrefcount(b)
#
# print(ret)
# print(ret2)


a = [11, 22]
b = a

a = 100

class XX(object):
    def __del__(self):
        pass